This book explores the development of hybrid corn, the history of eugenics, human genetics, the nature-nurture debate, the origins of the Marxian concept of proletarian science, the shift in the meaning of "fitness" in evolutionary theory, the practice of normal science in Nazi Germany, and the making and selling of science textbooks. While the topics are diverse, a common theme unites them - each explores links between biological science, social power, and public policy.

Flower essences are living energies that can bring more vigor and vitality to our lives. They teach us how to evolve, how to utilize our elements, how to nourish and be nourished, how to be of beauty, and how to orient ourselves. They teach us internal integrity and structure. They teach us how to be. Many of Mary Ann's interpretations of flower essences here are tailored to fit the needs of particular circumstances. Formatted with keywords for quick reference to whatever issues you would like to explore, this compilation of her columns from the past ten years serves as a friend, guide, and resource to help you grow and blossom. 130 Essences Including: • Apple Blossom • Beech • Chaparral • Cherry • Plum • Echinacea • Elm • Fireweed • Garlic • Golden Yarrow • Honeysuckle • Indian Pink • Lavender • Lemon • Olive • Pine • Sage • St. Johnswort • Trillium • White Chestnut • Zinnia

The lavish array of organisms known as "biodiversity" is an intricately linked web that makes the Earth a uniquely habitable plane. In this book, a noted science writer examines the threats posed to humans by the loss of biodiversity and explains key findings from the ecological sciences. It is the first book of its kind to clearly explains the practical consequences of declining biodiversity of ecosystem hjealth and function and, consequently, on human society.

Perfect bound with additional flaps on the cover

The study of chaotic systems has become a major scientific pursuit in recent years, shedding light on the apparently random behaviour observed in fields as diverse as climatology and mechanics. InThe Essence of Chaos Edward Lorenz, one of the founding fathers of Chaos and the originator of its seminal concept of the Butterfly Effect, presents his own landscape of our current understanding of the field. Lorenz presents everyday examples of chaotic behaviour, such as the toss of a coin, the pinball's path, the fall of a leaf, and explains in elementary mathematical strms how their essentially chaotic nature can be understood. His principal example involved the construction of a model of a board sliding down a ski slope. Through this model Lorenz illustrates chaotic phenomena and the related concepts of bifurcation and strange attractors. He also provides the context in which chaos can be related to the similarly emergent fields of nonlinearity, complexity and fractals. As an early pioneer of chaos, Lorenz also provides his own story of the human endeavour in developing this new field. He describes his initial encounters with chaos through his study of climate and introduces many of the personalities who contributed early breakthroughs. His seminal paper, "Does the Flap of a Butterfly's Wing in Brazil Set Off a Tornado in Texas?" is published for the first time.